Bulletproof Background Images Not Showing
We have recently started having an issue with our background images not showing in Outlook 2010 and 2013. We have never had this issue before. By chance, our front end developer noticed that running images through TinyPNG.com made them work regardless of the file size. However, our previous developer never did this and the background images worked just fine. It's just so strange. Has anyone out there had an issue like this before?